Hello. A Week & a half ago, I had unprotected oral sex performed on me by a CSW. Over the past week, I ve developed a burning sensation when urinating. Was nervous about it, but assumed it would just pass (it hasn t yet). But just now, I went to use the bathroom, only to notice a dark crust-like form around my urethra area. I literally just started a new job today, and won t be able to get tested until Wed. In the meantime, does this sound familiar? STD?